Clamping machine for snap fasteners



9, 1930. P, Wm.; 1,784,034l

CLAMPING MACHINE FOR SNAP FASTENERS 'Filed oct, 19, 1929 :s sheets-sheet 1 Dec. 9, 1930. I P. R. vlTTE v 1,784,034

GLAMPING MACHINE FOR SNAP FASTENERS l Fiied Oct. 19, 1929 i 3 Sheets-Sheet 2 Dee. 9,1930. P; R, V|TTE 1,784,034 v CLAMPING MACHINE FOR SNAP FASTENERS Filed Oct. 19, 1929 3 SheetS-Shey 5 Patented Dec. 9, 1930 UNITED 'STATES PAUL B. VITTE, l02|? LONG BEACH, CALIFORNIA CLAHSPING MACHINE FOR SNAP FASTENEBS Application mea october 1s, 1929. serial no. 400,817.

This invention relates to a machine whereby snap fasteners are clamped into the material or article upon which they are to be used. 6 An object of my invention is to provide a machine of the character stated which will automaticall feed the fasteners into a position so that t e operator can insert them into the material.

A further object is to provide a machine which when the fasteners are inserted'into the goods by the operator, will securely clamp Y them in position.

Still another object is to rovide a machine vof the character stated w ich is simple in construction and effective in operation.

Other objects, advantages and featuresof invention may appear from the accompanyinfr drawing the subjoined detailed descrip-` tion and the appended claims. In the drawin Figure 1 is a pfan view of my machine. Figure 2 is a side elevation of the same with parts broken away to show interior construction.

Figure 3 is a side elevation of my machine showing the parts as the fastener is clamped. Figure 4 is a side elevation of my machine showing'the parts ready to feed a fastener into the position for insertion in the material.

Figure 5 is an end view of the machine.

taken on line 6 6 of Figure 2.

Figure 7 illustrates the fastener in various stages of being clamped.

Figure 8 is an end view of the feeding block.

Referring more particularly to the drawing, the numeral 1 indicates a frame substantially U-shaped when Viewed from the side,

and this frame is adapted to rest upon a table or the like (not shown) or it may be supported by any other suitable means. The

frame 1 includes an upper horizontal arm 2,

and a lower horizontal arm 3. An operating arm 4 is pivotally mounted upon the frame 1 and. preferably is pivoted to a lug 5 which depends from the frame. A link 6 is pivotally secured to the arm 4 and to a foot pedal 7 5 which pedal is pivotally mounted upon a fastener when thefastener is pushed forwardly as shown in Figure 2. `A pin 17 extends bracket 8, said bracket being secured to the fioor." v

A feeding block 9 4is rigidly'secured to, or i is formed upon the forward end ofthe arm 2, and this block is formed with a horizontalV V slide-way 10 in the bottom thereof. The fastener 11 is fed into the block 9 and rests in the slide-'way 10. The fasteners are stacked-in a feeding chute 12, which chute rises from the block'9 and the block has an opening 13 there-4 in which coincides with the chute 12. The

fasteners are yieldably urged downwardly into the blockby a spring 14 in the chute 12.

`drops into the slide 10, the member 15 then moves forward carrying the fastener into the position shown in Figure 2. lThis operation"` will be described further in detail.

` plunger 16 is slidably mounted adjacent the .l forward end of the arm 3, and this plunger is positioned in vertical line with the into the plunger 16 and a coil spring 18 is positioned between the top of the pin 17 and the plunger` 16. The forward end of the arm 4 is adaptedY to bear yagainst t-helowerend of4 180 the pin 17 and when the'pedal 7 is depressed Figure 6 isa fragmentary sectional v1ew y the forward end ofthe arm 4 will be swung upwardly, thus moving the pin 17 upwardly and simultaneously carrying the plunger 16 against the fastener 11 as shown in Figure 3.' 85

This movement will squeeze the fingers of the fastener against the main body kof the fastener ready to clinch the up-turned ends of the fastener fingers over upon the body there-l of. The spring 18 willpermit considerable 19.9 movement of the arm 4 even after the plunger is engaging. the fastener, the purpose of which will be furt-her'described. f The rear end of the operating arm 4 is forked as shown at 19, and straddles a pitman 20. The pitman 2O is provided with a pair of stops 21-22 against which the fork 19 bears to move the pitman 20 'upwardly or downwardly. The stops 2122 are spaced apart and the first downward movement of the arm el will first carry the plunger 16 upwardly as previously described, and then will engage the stop 22 to move the pitman 20 downwardly. The upper end of the pitman 2O is pivotally secured to a wheel 23, which wheel is journaled in the frame 1. It is obvious that downward or upward movement of the pitman 2O will rotate the wheel 23.

A cam 2li is pivotally mounted on the forward end of the block 9 and as this arm is swung, it engages the rip-turned tips of the fingers 25 of the fastener 11, and clinches them over uponthe body of the fastener1 23 shown in Figure 3. The cam 2 t is operated from the wheel 23 through a lever 26 which is pivoted at one end' to the wheel and at the other end to the cam, The lever also extends through a guide block 27 which is se ured' to the frame 1. From Figure o it will be evident that as the pit-man 2O is pulled downwardly, the link 26 'ill be shoved forwardly, thus rocking the cam 24 which enables thecam to clinch the fingers of the fastener as shown in the drawings.

The feed member l5 is reciprocated by a strap 28 which is pivotally mounted on the frame 1, and the lower end of the strap is pivoted to the member 15. A push bar 29 is pivotally secured to the wheel 23 and is provided with a shoulder 30 which engages a pin 31 on the strap 28. lV hen the foot pedal 7 is moved in the opposite direction from the action previously7 described, the arm 1 is raised at the rear thereof and the stop 21 is engaged. The pitman 20 is then pushed upwardly and the wheel 23 is rotated so as to move the push bar forwardly. This swings the strap 28 upon its pivot and will move the member 15 rearwardly. A new fastener then drops into the slide-way 10 and the bar 29 is released from the pin' 31 by means of a cam 32 which is engaged by a cam surface 33 on the bar 29 as shown in Figure 4L. Then a coil spring 34 swings the strap 28 to push the member 15 forward, which carries the fastener into the position shown in Figure 2.

In operation, assuming one of the fasteners in the position shown in Figure 2, the foot Jedal 7 is moved to pull the link 6 downwardly, and that swings the forward end of the operating arm l upwardly. The plunger 16 moves into contact with the fastener 11 and flattens'the fingers 25 against the cloth. Further movement of the pedal 7 then causes the `rear end of the arm t to engage the stop 22. The wheel 23 is rotated and the link 26 is pushed forwardly to rotate the cam 24. The cam engagesthe rip-turned ends of the fingers 25 and clinches them over upon the main body of the fastener, thus securely holding the fastener in the cloth.

This operation is shown in Figure 3. The pedal is now rotated so as to push the link 6 upwardly, the plunger 16 is depressed, the rear end of the arm 4L engages the stop 21 and the wheel 23 is rotated in Jthe opposite direction from that previously described. The push bar is moved forwardly and swings the strap 28 upon its pivot. This carries the member 15 rearwardly in its slide-way which permits another fastener to drop into the slideway 10. The cam surface 33 then strikes the cam 32 and the push bar 29 is released from the strap 28. The spring 3a then becomes effective and the member 15 is pushed forwardly moving the fastener ahead of it into the position shown in Figure 2, and the operation is again repeated.

A mirror 35 is mounted on the arm 3 adjacent the forward end thereof so that the 1. A snap fastener clamping machine coma prising a frame, a feeding block, means to feed said fasteners into the block, means slidably mounted in the block whereby a fastener 1s engaged and moved ad]acent the forward end of said block, plunger means engaging said fastener, means to operate said plunger means, and means engageable with the fastener whereby said fastener is crimped on to the material and means to actuate said last named means. l

2. A snap fastener clamping machine comprising a frame, a feeding block, means to feed the snap fasteners into said block', means slidable in the block engaging said fastener whereby the fastener is moved adjacent the forward end of the block, a plunger reciprocally mounted in the frame, means to raise said plunger against a fastener, cam means engaging said fastener whereby the fastener' is crimped on to'the material', and means towactuate said cam means.

3. A snap fastener clamping machine comprising a frame, a feeding block, means to feed the fastener into the block, a feeding member slidably mounted in the block, means-1^I ate said plunger whereby it is raised againstff-Ia the fastener, a cam mounted on said block and means operable from said plunger operating means whereby the cam is rotated to crimp the fastene 1s on to the material.

1. A snap fastener clamping machine com-r;

prising a frame, a feed block, a feeding member slidably mounted in the block, means to feed fasteners into the block, means to reciprocate said feeding member whereby a fastener is pushed adjacent the forward edge'` of the feed block, a plunger reciprocally mounted in the frame, said plunger moving vertically against the bottom of the fastener, an operating arm pivotally mounted to the frame, the forward end of said arm engaging the plunger, means to swing said arm on its pivot to actuate said plunger, a cam, means to rotate saidv cam whereby the fastener is crimped on to the material, and means connecting said arm and the cam rotating means.

5. A snap fastener clamping machine com- )rising a frame, a feed block, a feeding'memer slidably mounted in the block, means to feed fasteners into the block, means to reciprocate said feeding member whereby a fastener is pushed adjacent the forward edge of the feed block, a plunger reciprocally mounted in the frame, said plunger moving vertically against the bottom of the fastener, an operating arm pivotally mounted to the frame, the forward end of said arm engaging the plunger, a cam, a wheel journaled on the frame, a lever pivotally secured to said wheel and to the cam, and means connectinf.Y said Wheel and said operating lever whereby the wheel is rotated as the lever is swung on its pivot.

6. A snap fastener clamping machine comprising a frame, a feed block, a feeding member slidably mounted in the block, means to feed fasteners into the block, means to reciprocate said feeding member whereby a fastener is pushed adjacent the forward edge of the feed block, a plunger reciprocally mounted in the frame, said plunger moving vertically against the bottom of the fastener, an operating arm pivotally mounted to the frame, the forward end of said arm engaging the plunger, a cam, a wheel journaled on the frame, a lever pivotally secured to said wheel and to the cam, a pitman pivotally secured to the wheel and depending therefrom, the rear end of said operating arm straddling said pitman and stops on the pitman engageable by the operating arm whereby the pitman is actuated to rotate the wheel.

7. A clamping machine for snap fasteners comprising a frame, a feeding block, a chute rising from the feed block, the snap fasteners being fed into the chute and thence into the feeding block, a feeding member slidably mounted in the block, a strap pivotally mounted onk the frame and pivotally secured to the feeding member, a wheel journaled on the frame, means connected to said wheel and to said strap whereby the strap is swung to reciprocate said feeding member, a cam adjacent the forward end of the feeding block, means connecting said cam and said wheel whereby the cam is rotated to crimp the fastener on to the material, a plunger reciprocally mounted in the frame, said plun er extending vertically to press against the ottom of the fastener,

an operating arm pivotally mounted on the 8. A clamping machine for snap fasteners i comprising a frame, a feeding block, a chute rising from the feed block, the snap fasteners being fed into the chute and thence into the feeding block, a feeding member slidably mounted in the block, a strap pivotally mounted on the frame and pivotally vsecured to the feeding member, a wheel journaled on the frame, means connected to said wheel and to staid strap whereby the strap is swung to reciprocate said feeding member, a cam adjacent the forward end of the feeding block, means connecting said cam and said wheel whereby the cam is rotated to crimp the fastener on to the material, a plunger reciprocally mounted in the frame, said plunger extending vertically to press against the bottom of the fastener, an operating arm pivotally mounted on the frame, one end of said arm engaging the plunger to raise the same against the fastener, means to swing said operating arm onits pivot, a pitman pivotally secured to the wheel and depending F therefrom, one end of said operating arm straddling the pitman, a pair of stops on t-he pitman engageable by the operating arm whereby the pitman is moved upwardly and downwardly to rotate the wheel.

9. A snap fastener clamping machine comprising a frame, a feed block, a feeding member slidably mounted in theV block, means to feed fasteners into the block, means to reciprocate said feeding member whereby a fastener is pushed adjacent the forward edge of the feed block, a plunger reciprocally mounted in the frame, said plunger moving vertically against the bottom of the fastener, an operating arm pivotally mounted to the frame; the forward end of said arm engag-V ing the plunger, a cam, a wheel journaled on the frame, a lever pivotally secured to said Wheel and to the cam, a pitman pivotally secured to the wheel and depending therefrom, the rear end of said operating arm straddling said pitman and stops on the pitman engageable by the Voperating lever whereby the pitman is actuated to rotate the wheel, a pin extending into the plunger, said pin engaging the operating arm and spring means between the pin and the plunger whereby .the plunger is yieldably pressed against the fastener.

In testimony whereof, I affix my signature.

PAUL R. VITTE. 

